A CysLT1 and CysLT2 receptor antagonist
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BAY u9773

Item No. 70770

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
4-[[(1R,2E,4E,6Z,9Z)-1-[(1S)-4-carboxy-1-hydroxybutyl]-2,4,6,9-pentadecatetraenyl]thio]-benzoic acid
CAS Number
154978-38-8
Molecular Formula
C27H36O5S
Formula Weight
472.6
Purity
≥95%
Formulation
A 100 µg/ml solution in ethanol
Solubility(Learn about Variance in Solubility)
DMF: 25 mg/mlDMSO: 25 mg/mlEthanol: 25 mg/mlPBS (pH 7.2): .15 mg/ml
λmax
279 nm
SMILES
CCCCC/C=C\C\C=C/C=C\C=C/[C@@H](Sc1ccc(cc1)C(=O)O)C(O)CCCC(=O)O
InChi Code
InChI=1S/C27H36O5S/c1-2-3-4-5-6-7-8-9-10-11-12-13-16-25(24(28)15-14-17-26(29)30)33-23-20-18-22(19-21-23)27(31)32/h6-7,9-13,16,18-21,24-25,28H,2-5,8,14-15,17H2,1H3,(H,29,30)(H,31,32)/b7-6-,10-9-,12-11+,16-13+/t24-,25+/m0/s1
InChi Key
PKJINWOACFYDQN-RBVMPENBSA-N
Shipping & Storage Information
Storage
-80°C
Shipping
Dry ice in continental US; may vary elsewhere
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    25 µg

    $71

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    50 µg

    $131

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    100 µg

    $248

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    500 µg

    $1,091

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    Product Description

    BAY u9773 is a cysteinyl leukotriene 1 (CysLT1) and CysLT2 receptor antagonist.1 It inhibits contractions induced by leukotriene D4 (LTD4; Item No. 20310) or LTC4 (Item No. 20210) in isolated guinea pig trachea, rat lung, ferret spleen, and sheep bronchus (pA2s = 6.8-7.4). BAY u9773 (0.1 mg/kg) suppresses airway hypersensitivity and bronchoalveolar lavage fluid (BALF) eosinophil infiltration in a guinea pig model of ovalbumin-induced asthma.2 It also increases the latency to generalized seizures and decreases the EEG amplitude in a mouse model of seizures induced by pentylenetetrazol (PTZ; Item No. 18682).3

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Tudhope, S.R., Cuthbert, N.J., Abram, T.S., et al. BAY u9773, a novel antagonist of cysteinyl-leukotrienes with activity against two receptor subtypes. Eur. J. Pharmacol. 264, 317-323 (1994).

    2. Muraki, M., Imbe, S., Santo, H., et al. Effects of a cysteinyl leukotriene dual ½ receptor antagonist on antigen-induced airway hypersensitivity and airway inflammation in a guinea pig asthma model. Int. Arch. Allergy Appl. Immunol. 155(Suppl. 1), 90-95 (2011).

    3. Lenz, Q.F., Arroyo, D.S., Temp, F.R., et al. Cysteinyl leukotriene receptor (CysLT) antagonists decrease pentylenetetrazol-induced seizures and blood-brain barrier dysfunction. Neuroscience 277, 859-871 (2014).

    Product Citations

    Ni, N.C., Yan, D., Ballantyne, L.L., et al. A selective cysteinyl leukotriene receptor 2 antagonist blocks myocardial ischemia/reperfusion injury and vascular permeability in mice. J. Pharmacol. Exp. Ther. 339(3), 768-778 (2011).